The interim financial statements included in this Quarterly Report on Form 10-Q
and this Management's Discussion and Analysis of Financial Condition and Results
of Operations should be read in conjunction with the financial statements and
notes thereto for the year ended December 31, 2020, and the related Management's
Discussion and Analysis of Financial Condition and Results of Operations,
contained in the 2020 Form 10-K. In addition to historical information, this
discussion and analysis contains forward-looking statements within the meaning
of Section 27A of the Securities Act of 1933, as amended, or the Securities Act,
and Section 21E of the Securities Exchange Act of 1934, as amended "Exchange
Act". These forward-looking statements are subject to risks and uncertainties,
including those discussed in the section titled "Risk Factors," set forth in
Part II - Other Information, Item 1A below and elsewhere in this report, that
could cause actual results to differ materially from historical results or
anticipated results.

Overview



We are a commercial-stage biopharmaceutical company with a mission to increase
patient access to cost-effective medicines that can have a major impact on their
lives and to deliver significant savings to the health care system. Our strategy
is to build a leading immuno-oncology franchise in the United States and Canada
funded with cash generated by our commercial biosimilar business.

Our first product, UDENYCA® (pegfilgrastim-cbqv), a biosimilar to Neulasta®, a
long-acting granulocyte-colony stimulating factor, was launched commercially in
the United States in January 2019. In addition to UDENYCA®, we have a product
candidate pipeline that includes biosimilars of Humira®, Avastin® and Lucentis®.
Biosimilars are a class of protein-based therapeutics with high similarity to
approved originator products on the basis of rigorous standards set by the U.S.
Food and Drug Administration ("FDA") for biosimilarity. We have become a leader
in the biosimilar market by leveraging our team's collective expertise in key
areas such as process science, analytical characterization, protein production,
clinical-regulatory development and commercialization.

In February 2021, we in-licensed our first immuno-oncology product candidate,
toripalimab, a novel anti-PD-1 antibody, from Shanghai Junshi Biosciences Co.,
Ltd. ("Junshi Biosciences"). Toripalimab has been extensively evaluated in
late-stage clinical trials for the treatment of multiple tumor types. The FDA
has granted Priority Review for the toripalimab biologics license application
("BLA"), for the treatment of nasopharyngeal carcinoma ("NPC"), and set a
Prescription Drug User Fee Act "(PDUFA") action date for April 2022. Within the
next several years, we anticipate BLA supplements for multiple additional
indications, including for rare and more prevalent tumor types, including
non-small cell lung cancer. We have also acquired options to license two
pipeline immuno-oncology product candidates from Junshi Biosciences, an
anti-TIGIT antibody and a next-generation engineered IL-2 cytokine, for
potential evaluation in combination with toripalimab.



With our UDENCYA® commercialization efforts, we have built a strong, oncology-focused commercial capability in the United States. We expect to leverage this commercial capability as we build our immuno-oncology franchise.

Our pipeline includes the following product candidates:

Oncology Pipeline

Toripalimab, an anti-PD-1 antibody being developed in collaboration with Junshi

Biosciences, a leading Chinese biotechnology company. More than thirty

? company-sponsored clinical studies have been conducted globally, including in

China and the United States, evaluating toripalimab for more than fifteen


   indications.




We and Junshi Biosciences completed the submission of the toripalimab BLA to the
FDA for the treatment of NPC in the third quarter of 2021 and the FDA granted
the BLA Priority Review with a target action date of April 2022. In addition to
NPC, we plan to submit supplemental BLAs to the FDA for toripalimab within

the

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next two years for the treatment of several rare and highly prevalent cancers, including non-small cell lung cancer.





The FDA has granted Breakthrough Therapy designation for patients with recurrent
or metastatic NPC with disease progression on or after platinum-containing
chemotherapy and for toripalimab in combination with chemotherapy (gemcitabine
and cisplatin) for the first line treatment of recurrent or metastatic NPC. The
FDA has also granted toripalimab Fast Track designation for the treatment of
mucosal melanoma and orphan drug designations for treatment of NPC, mucosal
melanoma and soft tissue sarcoma.



UDENYCA® (pegfilgrastim-cbqv). We are developing additional presentations of

UDENYCA®, including a proprietary on-body injector ("OBI"), in addition to the

currently marketed pre-filled syringe ("PFS") presentation. In October 2021, we

announced positive results from a randomized, open-label, crossover study

? assessing the pharmacokinetic ("PK") and pharmacodynamic bioequivalence of

UDENYCA® (pegfilgrastim-cbqv) administered via OBI compared to UDENYCA® PFS. We

are planning a 2022 submission to the FDA of a prior approval supplement to

seek marketing authorization for the UDENYCA® OBI and anticipate a 10-month

review period.

CHS-305, a bevacizumab (Avastin) biosimilar. On January 13, 2020, we entered

into a license agreement with Innovent Biologics (Suzhou) Co., Ltd.

("Innovent," and with respect to the license agreement with Innovent, the

"Innovent Agreement") for the development and commercialization of a biosimilar

? version of bevacizumab (Avastin) in any dosage form and presentations

("bevacizumab Licensed Product") in the United States and Canada. We are

performing a three-way PK study using Avastin drug products from the United


   States, Avastin drug products from China and Innovent's biosimilar to
   bevacizumab, as well additional analytical similarity exercises prior to
   facilitating a potential BLA submission for CHS-305 to the FDA.

Immunology Pipeline

CHS-1420 (our adalimumab (Humira) biosimilar candidate). We are developing

CHS-1420, an anti-TNF product candidate, as an adalimumab (Humira) biosimilar.

In the fourth quarter of 2020, we submitted the 351(k) BLA, which was accepted

for review by the FDA in February 2021. The user fee goal date is in December

? 2021. If approved, we anticipate we would be able to launch CHS-1420 in the

United States on or after July 1, 2023, in accordance with settlement and


   license agreements with AbbVie Inc. ("AbbVie") that grants us global,
   non-exclusive license rights under AbbVie's intellectual property to
   commercialize CHS-1420.


Ophthalmology Pipeline

CHS-201, a ranibizumab (Lucentis) biosimilar. On November 4, 2019, we entered

into a license agreement with Bioeq IP AG (now Bioeq AG or "Bioeq") for the

commercialization of CHS-201, a biosimilar version of ranibizumab (Lucentis) in

? certain dosage forms in both a vial and PFS presentation. Under this agreement,

Bioeq granted to us an exclusive royalty-bearing license to commercialize

CHS-201 in the field of ophthalmology (and any other approved labelled

indication) in the United States.


Bioeq submitted a BLA for CHS-201 to the FDA in the third quarter of 2021. The
FDA has accepted the CHS-201 BLA for review and assigned an August 2022 target
action date.

Small Molecule Pipeline

CHS-131 (our oral, small-molecule drug candidate). CHS-131 is a novel,

potential first-in-class, once-daily oral drug candidate for non-alcoholic

? steatohepatitis ("NASH") and other metabolic conditions. In February 2020, we


   announced that we are seeking strategic alternatives to finance this program
   externally.


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COVID-19 Update



As a result of the COVID-19 pandemic, we have experienced and may continue to
experience disruptions that could severely impact our business, clinical trials
and preclinical studies. See "Risk Factors." These and other factors arising
from the COVID-19 pandemic could result in us not being able to maintain
UDENYCA®'s market position or increase its penetration against all Neulasta's
dosage forms and could result in our inability to meet development or regulatory
milestones for our product candidates, each of which would harm our business,
financial condition, results of operations and growth. Until the COVID-19
pandemic is controlled, we expect it may continue to adversely impact our sales
growth. In addition, the spread of more contagious and deadly variants, such as
the Delta variant, could cause the COVID-19 pandemic to last longer than
expected and could result in the reinstatement of restrictive orders that could
disrupt our business.

While the long-term economic impact and the duration of the COVID-19 pandemic
may be difficult to assess or predict, the widespread pandemic has resulted in,
and may continue to result in, significant disruption of global financial
markets, which could reduce our ability to access capital and could negatively
affect our liquidity and the liquidity and stability of markets for our common
stock and our convertible notes. In addition, a recession, market correction or
depression resulting from the spread of COVID-19 could materially affect our
business and the value of our notes and our common stock.

Financial Operations Overview

Revenue


We recorded net product revenue of $82.5 million and $113.6 million during the
three months ended September 30, 2021 and 2020, respectively, and $253.2 million
and $365.4 million during the nine months ended September 30, 2021 and 2020,
respectively.

Cost of Goods Sold

Cost of goods sold consists primarily of third-party manufacturing,
distribution, and overhead costs associated with UDENYCA®. Prior to the second
quarter 2021, a portion of the costs of producing UDENYCA® sold was expensed as
research and development before the FDA approval of UDENYCA® and therefore was
not reflected in the cost of goods sold. All the inventory expensed prior to
approval of UDENYCA® was fully utilized by March 31, 2021; thus, the costs of
producing UDENYCA® are fully reflected in cost of goods sold for the three
months ended September 30, 2021. For the three and nine months ended September
30, 2021, cost of goods sold included write-offs for inventory that did not meet
our acceptance criteria, net of credits received from the manufacturers, of $5.2
million and $5.1 million, respectively.



On May 2, 2019, we settled a trade secret action brought by Amgen Inc. and Amgen
USA Inc. (collectively "Amgen"). As a result, cost of goods sold reflects a
mid-single digit royalty on net product revenue, which began July 1, 2019 and
continues for five years from then.

Research and Development Expense



Research and development expense represents costs incurred to conduct research,
such as the discovery and development of our product candidates. We recognize
all research and development costs as they are incurred. We currently track
research and development costs incurred on a product candidate basis only for
external research and development expenses. Our external research and
development expense consists primarily of:

expense incurred under agreements with consultants, third-party contract

? research organizations ("CROs"), and investigative sites where a substantial

portion of our preclinical studies and all of our clinical trials are


   conducted;


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costs of acquiring originator comparator materials and manufacturing

? preclinical study and clinical trial supplies and other materials from contract

manufacturing organizations, and related costs associated with release and

stability testing;

? costs associated with manufacturing process development activities; and

? upfront and certain milestone payments related to licensing and collaboration

agreements.

Internal costs are associated with activities performed by our research and development organization and generally benefit multiple programs. These costs are not separately allocated by product candidate. Unallocated, internal research and development costs consist primarily of:

? personnel-related expense, which includes salaries, benefits and stock-based

compensation; and

facilities and other allocated expense, which includes direct and allocated

? expenses for rent and maintenance of facilities, depreciation and amortization

of leasehold improvements and equipment, laboratory and other supplies.

The largest component of our total operating expense has historically been our investment in research and development activities, including the clinical development and manufacturing process development of our product candidates.


We consider regulatory approval of product candidates to be uncertain, and any
products manufactured prior to regulatory approval may not be sold unless
regulatory approval is obtained. We expense manufacturing costs as incurred for
product candidates prior to regulatory approval as research and development
expense. If, and when, regulatory approval of a product candidate is obtained,
we will begin capitalizing manufacturing costs related to the approved product
into inventory.

The process of conducting the necessary clinical research to obtain regulatory
approval is costly and time consuming. Furthermore, in the past, we have entered
into collaborations with third parties to participate in the development and
commercialization of our product candidates, and we may enter into additional
collaborations in the future. In situations in which third parties have
substantial influence over the development activities for product candidates,
the estimated completion dates are not fully under our control. For example, our
partners in licensed territories may exert considerable influence on the
regulatory filing process globally. Therefore, we cannot forecast with any
degree of certainty the duration and completion costs of these or other current
or future clinical trials of our product candidates. We may never succeed in
achieving regulatory approval for any of our pipeline product candidates. In
addition, we may enter into other collaboration arrangements for our other
product candidates, which could affect our development plans or capital
requirements.

Selling, General and Administrative Expense


Selling, general and administrative expense consists primarily of personnel
costs, allocated facilities costs and other expense for outside professional
services, including legal, insurance, human resources, outside marketing,
advertising, audit and accounting services, as well as costs associated with
establishing commercial capabilities in support of the commercialization of
UDENYCA®. Personnel costs consist of salaries, benefits and stock-based
compensation.

Interest Expense

Interest expense consists primarily of interest incurred on our outstanding indebtedness and non-cash interest related to the amortization of debt discount and debt issuance costs associated with our outstanding debt agreements.



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Other Income, Net

Other income, net consists primarily of interest earned from our investments in marketable securities and foreign exchange gains and losses resulting from currency fluctuations.

Significant Transactions

License Agreement with Junshi Biosciences

On February 1, 2021, we entered into an Exclusive License and Commercialization Agreement (the "Collaboration Agreement") with Junshi Biosciences for the co-development and commercialization of toripalimab, Junshi Biosciences' anti-PD-1 antibody in the United States and Canada (the "Collaboration").



Under the terms of the Collaboration Agreement, we paid $150.0 million upfront
for exclusive rights to toripalimab in the United States and Canada, options in
these territories to Junshi Biosciences' anti-TIGIT antibody and next-generation
engineered IL-2 cytokine, and certain negotiation rights to two undisclosed
preclinical immuno-oncology drug candidates. We will have the right to conduct
all commercial activities of toripalimab in the United States and Canada. We
will be obligated to pay Junshi Biosciences a 20% royalty on net sales of
toripalimab and up to an aggregate $380.0 million in one-time payments for the
achievement of various regulatory and sales milestones. If we exercise our
options, we will be obligated to pay an option exercise fee for each of the
anti-TIGIT antibody and the IL-2 cytokine of $35.0 million per program.
Additionally, for each exercised option, we will be obligated to pay Junshi
Biosciences an 18% royalty on net sales and up to an aggregate $255.0
million for the achievement of various regulatory and sales milestones. Under
the Collaboration Agreement, we retain the right to collaborate in the
development of toripalimab and the other licensed compounds, and will pay for a
portion of these co-development activities up to a maximum of $25.0 million per
licensed compound per year. Additionally, we are responsible for certain
associated regulatory and technology transfer costs for toripalimab and other
licensed compounds and will reimburse Junshi Biosciences for such costs. We
recognized research and development expense of $15.4 million and $37.6 million
in the condensed consolidated statement of operations for the three and nine
months ended September 30, 2021, respectively, and recognized $19.7 million in
accounts payable and $11.2 million in accrued and other current liabilities on
the condensed consolidated balance sheet as of September 30, 2021 related to the
co-development, regulatory and technology transfer costs. We accounted for the
licensing transaction as an asset acquisition under the relevant accounting
rules. We recorded research and development expense of $145.0 million during the
first quarter of 2021, related to an upfront payment for exclusive rights to
toripalimab in the United States and Canada. We had entered into a Right of
First Negotiation agreement with Junshi Biosciences and paid a fee of $5.0
million which was fully expensed as research and development expense in the
fourth quarter of 2020. The Right of First Negotiation fee was fully credited
against the total upfront license fee obligation under the Collaboration
Agreement. As of September 30, 2021, we did not have any outstanding milestone
or royalty payment obligations to Junshi Biosciences.

The additional milestone payments, option fees for additional anti-TIGIT antibodies and the IL-2 cytokines and royalties are contingent upon future events and, therefore, will be recorded when it is probable that a milestone will be achieved, option fees will be incurred or when royalties are due.



In connection with the Collaboration Agreement, we entered into a stock purchase
agreement (the "Stock Purchase Agreement") with Junshi Biosciences agreeing,
subject to customary conditions, to acquire certain equity interests in the
Company. Pursuant to the Stock Purchase Agreement, on April 16, 2021, we issued
2,491,988 unregistered shares of our common stock to Junshi Biosciences, at a
price per share of $20.0643, for an aggregate value of approximately $50.0
million cash. Under the terms of the Stock Purchase Agreement, Junshi
Biosciences is not permitted to sell, transfer, make any short sale of, or grant
any option for the sale of the common stock for the two years period following
its effective date. The Collaboration Agreement and the Stock Purchase Agreement
were negotiated concurrently and were therefore evaluated as a single agreement.
We used the "Finnerty" and "Asian put" valuation models and determined the fair
value for the discount for lack of marketability ("DLOM") to be $9.0 million at
the date

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the shares were issued. The fair value of the DLOM was attributable to the
Collaboration Agreement and was included as an offset against the research and
development expense in the condensed consolidated statement of operations for
the nine months ending September 30, 2021.

Critical Accounting Policies and Estimates



Our management's discussion and analysis of our financial condition and results
of operations is based on our consolidated financial statements, which have been
prepared in accordance with United States generally accepted accounting
principles ("U.S. GAAP"). The preparation of financial statements in conformity
with U.S. GAAP requires us to make judgements, estimates and assumptions that
affect the reported amounts of assets, liabilities, equity, revenue and
expenses, and related disclosures. As appropriate, we periodically evaluate our
critical accounting policies and estimates. Our estimates are based on
historical experience and on various other factors that we believed to be
reasonable under the circumstances. These estimates form the basis for making
judgments about the carrying values of assets and liabilities that are not
readily apparent from other sources. Accounting estimates and judgements are
inherently uncertain and actual results could differ from these estimates.

There have been no significant changes to our accounting policies during the
nine months ended September 30, 2021, as compared to the significant accounting
policies described in our 2020 Form 10-K. We believe that the accounting
policies discussed in the 2020 Form 10-K are critical to understanding our
historical and future performance, as these policies relate to the more
significant areas involving management's judgments and estimates.

Recent Accounting Pronouncements



For a description of the expected impact of recent accounting pronouncements,
see "Note 1. Organization and Summary of Significant Accounting Policies" in the
"Notes to Condensed Consolidated Financial Statements" contained in Part I, Item
1 of this Quarterly Report on Form 10-Q.

Results of Operations

Comparison of Three and Nine Months Ended September 30, 2021 and 2020



Net Revenue


                                          Three Months Ended                       Nine Months Ended
                                            September 30,                           September 30,
(in thousands)                      2021        2020         Change        2021         2020         Change
Net product revenue               $ 82,503    $ 113,551    $ (31,048)    $ 253,180    $ 365,405    $ (112,225)
Net product revenue for the three and nine months ended September 30, 2021 was
$82.5 million and $253.2 million, respectively, compared to $113.6 million and
$365.4 million for the three and nine months ended September 30, 2020,
respectively. The decreases were primarily due to a decrease in the number of
units of UDENYCA® sold during the three and nine months ended September 30,
2021, as well as an increase in discounts and allowances during the nine months
ended September 30, 2021.

Our net product revenue and market penetration may continue to be adversely impacted by the COVID-19 pandemic and is subject to pricing trends and competitive dynamics in the overall pegfilgrastim market.



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Cost of goods sold


                             Three Months Ended                 Nine Months Ended
                               September 30,                      September 30,
(in thousands)           2021       2020       Change      2021        2020       Change
Cost of goods sold     $ 21,280    $ 9,000    $ 12,280   $ 45,487    $ 25,994    $ 19,493
Gross margin                 74 %       92 %                   82 %        93 %




Cost of goods sold was $21.3 million and $45.5 million for the three and nine
months ended September 30, 2021, respectively, compared to $9.0 million and
$26.0 million for the three and nine months ended September 30, 2020,
respectively. Cost of goods sold consists primarily of third-party
manufacturing, distribution, overhead costs associated with the sale of UDENYCA®
and a mid-single digit royalty cost on net product revenue to Amgen, which began
on July 1, 2019 and will continue for five years from then. For the nine months
ended September 30, 2021 and 2020, a portion of the manufacturing costs for
inventory were incurred prior to the regulatory approval of UDENYCA® and,
therefore, were expensed as research and development costs prior to those
periods. The cost basis of product sold that was expensed prior to approval, was
$0 and $5.3 million for the three months ended September 30, 2021 and 2020,
respectively and $3.3 million and $15.9 million for the nine months ended
September 30, 2021 and 2020, respectively. Had such inventories been valued at
acquisition cost, it would have resulted in corresponding increases in cost of
goods sold and corresponding decreases in gross margin prior to the second
quarter of 2021. All the inventory expensed prior to approval of UDENYCA® was
fully utilized by March 31, 2021. In addition, for the three and nine months
ended September 30, 2021, cost of goods sold included write-offs for inventory
that did not meet our acceptance criteria, net of credits received from the
manufacturers, of $5.2 million and $5.1 million, respectively.

In the fourth quarter of 2021, we expect our gross margin to improve as compared
to the third quarter of 2021 due to anticipated reduced period charges. In
comparison to the same period of the prior year, our gross margin in the fourth
quarter of 2021 is expected to be lower due primarily to the transition in the
first quarter 2021 from inventory with manufacturing costs that were partly
recognized as research and development expenses prior to the regulatory approval
of UDENYCA®.

Research and Development Expense




                                            Three Months Ended                   Nine Months Ended
                                              September 30,                        September 30,
(in thousands)                         2021        2020       Change       2021         2020       Change

Research and development             $ 54,085    $ 38,851    $ 15,234    $

312,343    $ 98,131    $ 214,212




Research and development expense for the three months ended September 30, 2021
was $54.1 million compared to $38.9 million for the same period in 2020, an
increase of $15.2 million. The increase in research and development expense was
primarily due to the following:

? an increase of $15.9 million of co-development costs for toripalimab, of which

$15.4 million were reimbursements directly to Junshi Biosciences;

? an increase of $6.4 million related to the development of additional

presentations of UDENYCA®;

? an increase of $0.9 million in stock-based compensation expense primarily

related to equity awards granted in 2021;

The increase in research and development expense for the three months ended September 30, 2021 was partially offset by the following:



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a decrease of $5.9 million due to the discontinuation of CHS-2020 in the first

? quarter of 2021 resulting in no costs being incurred in the third quarter of

2021, as compared to $5.9 million in development costs incurred in the third

quarter of 2020; and

a milestone-based license fee payment of $2.5 million to Innovent pursuant to

? the Innovent Agreement made in the third quarter of 2020 did not recur in the

same period in 2021.

We project R&D expense in the fourth quarter of 2021 to be comparable to the third quarter of 2021.



Research and development expense for the nine months ended September 30, 2021
was $312.3 million compared to $98.1 million for the same period in 2020, an
increase of $214.2 million. The increase in research and development expense was
primarily due to the following:

2021 includes license fees of $145.0 million pursuant to the Collaboration

Agreement with Junshi Biosciences which was partially offset by a $9.0 million

? credit related to the fair value of the DLOM on the common shares purchased

under the Stock Purchase Agreement, as compared to 2020 which included upfront

and milestone-based license fees of $7.5 million to Innovent;

? an increase of $38.2 million of co-development costs for toripalimab, of which

$37.6 million were reimbursements directly to Junshi Biosciences;

? an increase of $23.0 million related to the development of additional

presentations of UDENYCA®;

an increase of $13.2 million in CHS-1420 related costs mainly due to expenses

? associated with FDA pre-approval inspections and scaling up Process Performance

Qualification production runs;

an increase of $7.2 million in costs incurred for the continued development of

? bevacizumab (Avastin) biosimilar product candidate licensed from Innovent in

2020;

an increase of $4.3 million in stock-based compensation expense primarily

? related to the grant of fully vested stock options to certain employees and

consultants upon the execution of the Collaboration Agreement with Junshi

Biosciences and additional equity awards granted in 2021; and

? an increase of $3.7 million in personnel and consulting costs to advance our

research and development programs.

The increase in research and development expense for the nine months ended September 30, 2021 was partially offset by the following:

a decrease of $3.0 million in costs related to CHS-2020 primarily attributable

? to $11.5 million of costs incurred in the first quarter of 2021 from

discontinuation of that program compared to $14.5 million in development costs

incurred in the nine months ended September 30, 2020; and

? a decrease of $1.0 million in CHS-131 related costs primarily due to

discontinuation of the development of CHS-131 in 2021.




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Selling, General and Administrative Expenses




                                             Three Months Ended                   Nine Months Ended
                                               September 30,                        September 30,
(in thousands)                           2021        2020      Change      

2021 2020 Change Selling, general and administrative $ 39,925 $ 31,984 $ 7,941 $ 119,661 $ 101,386 $ 18,275






Selling, general and administrative expense for the three months ended September
30, 2021 was $39.9 million compared to $32.0 million for the three months ended
September 30, 2020, an increase of $7.9 million. The increase was primarily due
to the following:

an increase of $4.7 million for personnel, consulting, professional services,

? marketing, advertising and other related expenses due to an increase in sales

force personnel and related commercial functions to support UDENYCA® sales;

? an increase of $1.5 million in stock-based compensation expense mainly related

to additional equity awards granted in 2021;

an increase of $1.1 million in facilities, supplies and materials and other

? infrastructure related expenses to support our commercial infrastructure

for UDENYCA®; and

an increase of $0.6 million in travel, offsite conference and training related

? expenses as a result of COVID-19 shelter-in-place restrictions in the prior

year quarter resulting in less travel and related expenses.

We expect selling, general and administrative expense to increase during the remainder of 2021 primarily as a result of anticipated increased commercial activities to support UDENYCA® sales and as a result of initiating our ophthalmology and immuno-oncology commercial activities.



Selling, general and administrative expense for the nine months ended September
30, 2021 was $119.7 million compared to $101.4 million for the nine months ended
September 30, 2020, an increase of $18.3 million. The increase was primarily due
to the following:

a net increase of $8.8 million for personnel, consulting, professional

? services, marketing, advertising and other related expenses due to an increase

in sales force personnel and related commercial functions to support UDENYCA®

sales;

an increase of $7.3 million in stock-based compensation expense mainly related

? to the grant of fully vested stock options to certain employees and consultants

upon the execution of the Collaboration Agreement with Junshi Biosciences and

additional equity awards granted in 2021; and

an increase of $1.9 million in facilities, supplies and materials and other

? infrastructure related expenses to support our commercial infrastructure


   for UDENYCA®.


Interest Expense


                          Three Months Ended                 Nine Months Ended
                            September 30,                     September 30,
(in thousands)       2021       2020       Change       2021        2020      Change
Interest expense    $ 5,771    $ 5,656    $    115    $ 17,166    $ 15,495    $ 1,671




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Interest expense for the three months ended September 30, 2021 was $5.8 million
compared to $5.7 million for the same period in 2020, an increase of $0.1
million. Interest expense for the nine months ended September 30, 2021 was $17.2
million compared to $15.5 million for the same period in 2020, an increase of
$1.7 million. The increase in interest expense for both periods is primarily due
to the interest related to our 2026 convertible notes ("2026 Convertible Notes")
that were issued in April 2020.

Income Tax Provision


                           Three Months Ended              Nine Months Ended
                             September 30,                  September 30,
(in thousands)          2021     2020     Change     2021      2020       Change
Income tax provision    $   -    $ 183    $ (183)    $   -    $ 2,411    $ (2,411)




There was no income tax expense for the three and nine months ended September
30, 2021 due to a projected tax loss for 2021 and the tax effect of the
valuation allowance against such loss for the year. Income tax expense of $0.2
million and $2.4 million for the three and nine months ended September 30, 2020,
primarily related to state taxes in jurisdictions outside of California, for
which we have a limited operating history. The income tax provision during the
interim periods is based on applying an estimated annual effective income tax
rate to year to date income, plus any significant unusual or infrequently
occurring items, which are recorded in the interim period. We maintain a full
valuation allowance against our net deferred tax assets due to our history of
losses.

Liquidity and Capital Resources



Due to our significant research and development expenditures, we have generated
significant operating losses since our inception. We have funded our operations
primarily through sales of our common stock and convertible preferred stock,
issuance and incurrence of debt and sales of UDENYCA®.

As of September 30, 2021, we had an accumulated deficit of $1.0 billion, cash
and cash equivalents of $360.5 million and investments in marketable securities
of $108.2 million. We believe that our current available cash, cash equivalents,
investments in marketable securities and cash collected from UDENYCA® sales will
be sufficient to fund our planned expenditures and meet our obligations for at
least the next 12 months following our financial statement issuance date. We may
need to raise additional funds in the future; however, there can be no assurance
that such efforts will be successful or that, if they are successful, the terms
and conditions of such financing will be favorable.

In February 2016, we issued and sold $100.0 million aggregate principal amount
of our 8.2% Convertible Senior Notes due in March 2022 (the "2022 Convertible
Notes"). These 2022 Convertible Notes require quarterly interest distributions
at a fixed coupon rate of 8.2% until maturity, redemption or conversion, which
will be no later than March 31, 2022. If we fail to satisfy certain registration
or reporting requirements, then additional interest will accrue on the 2022
Convertible Notes at a rate of up to 0.50% per annum in the aggregate. The
holders of the 2022 Convertible Notes are Healthcare Royalty Partners III, L.P.
and three of its related entities, which hold $75.0 million in aggregate
principal amount, and three related party investors, KKR Biosimilar L.P., which
holds $20.0 million, MX II Associates LLC, which holds $4.0 million, and KMG
Capital Partners, LLC, which holds $1.0 million. The 2022 Convertible Notes are
convertible into shares of common stock at an initial conversion rate of 44.7387
shares of common stock per $1,000 principal amount of the 2022 Convertible
Notes (equivalent to a conversion price of approximately $22.35 per share of
common stock, representing a 60% premium over the average last reported sale
price of our common stock over the 15 trading days preceding the date the 2022
Convertible Notes were issued), subject to adjustment in certain events. Upon
conversion of the 2022 Convertible Notes by a holder, the holder will receive
shares of our common stock, together, if applicable, with cash in lieu of any
fractional share. After March 31, 2020, the full amount of the 2022 Convertible
Notes not previously converted are redeemable for cash at our option if the last
reported sale price per share of our common stock exceeds 160% of the conversion
price on 20 or more trading days during the 30 consecutive trading days
preceding the date on which we send notice of such redemption to the holders of
the 2022 Convertible Notes. At maturity or redemption, if not earlier converted,
we will pay 109% of the principal amount of the 2022 Convertible Notes,

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together with accrued and unpaid interest, in cash. In April 2020, we amended
the 2022 Convertible Notes purchase agreement in connection with the issuance
and sale of our 2026 Convertible Notes (as defined below).

On January 7, 2019 (the "Term Loan Closing Date"), we entered into a credit
agreement (the "Term Loan") with affiliates of Healthcare Royalty Partners
(together, the "Lender"). The Term Loan consists of a six-year term loan
facility for an aggregate principal amount of $75.0 million (the "Borrowings").
Our obligations under the loan documents are guaranteed by our material domestic
U.S. subsidiaries.

The Borrowings under the Term Loan bear interest through maturity at 6.75% per annum plus LIBOR (customarily defined). Interest is payable quarterly in arrears.



We are required to pay principal on the Borrowings in equal quarterly
installments beginning on the third anniversary of the Term Loan Closing Date
(or, if consolidated net sales of UDENYCA® in the fiscal year ending
December 31, 2021 exceed $375.0 million, beginning on the fourth anniversary of
the Term Loan Closing Date, with the outstanding balance to be repaid on
January 7, 2025, the maturity date. As of September 30, 2021, $17.3 million of
the carrying value was classified as current liabilities on our condensed
consolidated balance sheets based upon our expectation that principal payments
will commence within twelve months of September 30, 2021.

We are also required to make mandatory prepayments of the Borrowings under the
Term Loan, subject to specified exceptions, with the proceeds of asset sales,
extraordinary receipts, debt issuances and specified other events including the
occurrence of a change in control.

If all or any of the Borrowings are prepaid or required to be prepaid under the
Term Loan, then we shall pay, in addition to such prepayment, a prepayment
premium equal to (i) with respect to any prepayment paid or required to be paid
on or prior to the third anniversary of the Term Loan Closing Date, 5.00% of the
Borrowings prepaid or required to be prepaid, plus all required interest
payments that would have been due on the Borrowings prepaid or required to be
prepaid through and including the third anniversary of the Term Loan Closing
Date, (ii) with respect to any prepayment paid or required to be paid after the
third anniversary of the Term Loan Closing Date but on or prior to the fourth
anniversary of the Term Loan Closing Date, 5.00% of the Borrowings prepaid or
required to be prepaid, (iii) with respect to any prepayment paid or required to
be paid after the fourth anniversary of the Term Loan Closing Date but on or
prior to the fifth anniversary of the Term Loan Closing Date, 2.50% of the
Borrowings prepaid or required to be prepaid, and (iv) with respect to any
prepayment paid or required to be prepaid thereafter, 1.25% of the Borrowings
prepaid or required to be prepaid.

In connection with the Term Loan, we paid a fee to the Lender of approximately
$1.1 million at closing in the form of an original issue discount. Upon the
prepayment or maturity of the Borrowings (or upon the date such prepayment or
repayment is required to be paid), we are required to pay an additional exit fee
in an amount equal to 4.00% of the total principal amount of the Borrowings.

The obligations under the Term Loan are secured by a lien on substantially all
of our tangible and intangible property, including intellectual property. The
Term Loan contains certain affirmative covenants, negative covenants and events
of default, including, covenants and restrictions that among other things,
restrict our ability and our subsidiaries to, incur liens, incur additional
indebtedness, make loans and investments, engage in mergers and acquisitions, in
asset sales, and declare dividends or redeem or repurchase capital stock.
Additionally, the consolidated net sales for UDENYCA® must not be lower than
$150.0 million for each fiscal year after the year ended December 31, 2020. A
failure to comply with these covenants could permit the Lender under the Term
Loan to declare the Borrowings, together with accrued interest and fees, to be
immediately due and payable. In April 2020, we amended the Term Loan in
connection with the issuance and sale of our 2026 Convertible Notes.

In April 2020, we issued and sold $230 million aggregate principal amount of
1.5% convertible senior subordinated notes due 2026 in a private offering to
qualified institutional buyers pursuant to Rule 144A under the Securities Act.
In

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connection with the pricing of the 2026 Convertible Notes, we entered into
privately negotiated capped call transactions with one or more of the initial
purchasers or their respective affiliates and/or other financial institutions
(the "option counterparties"). The cap price of the capped call transactions
will initially be $25.9263 per share, which represents a premium of
approximately 75.0% over the last reported sale price of our common stock of
$14.815 per share on April 14, 2020, and is subject to certain adjustments under
the terms of the capped call transactions. The 2026 Convertible Notes are
general unsecured obligations and will be subordinated to our designated senior
indebtedness. The 2026 Convertible Notes accrue interest at a rate of 1.5% per
annum, payable semi-annually in arrears on April 15 and October 15 of each year,
since October 15, 2020, and will mature on April 15, 2026, unless earlier
repurchased or converted. At any time before the close of business on the second
scheduled trading day immediately before the maturity date, holders may convert
their 2026 Convertible Notes at their option into shares of our common stock,
together, if applicable, with cash in lieu of any fractional share, at the
then-applicable conversion rate. The initial conversion rate is 51.9224 shares
of common stock per $1,000 principal amount of 2026 Convertible Notes, which
represents an initial conversion price of approximately $19.26 per share of
common stock. The initial conversion price represents a premium of approximately
30.0% over the last reported sale of $14.815 per share of our common stock on
the Nasdaq Global Market on April 14, 2020, the date the 2026 Convertible Notes
were issued. The conversion rate and conversion price will be subject to
customary adjustments upon the occurrence of certain events. If a "make-whole
fundamental change" (as defined in the indenture for the 2026 Convertible Notes)
occurs, we will, in certain circumstances, increase the conversion rate for a
specified period of time for holders who convert their 2026 Convertible Notes in
connection with that make-whole fundamental change. The 2026 Convertible Notes
are not redeemable at our election before maturity. If a "fundamental change"
(as defined in the indenture for the 2026 Convertible Notes) occurs, then,
subject to a limited exception, holders may require us to repurchase their 2026
Convertible Notes for cash. The repurchase price will be equal to the principal
amount of the 2026 Convertible Notes to be repurchased, plus accrued and unpaid
interest, if any, to, but excluding, the applicable repurchase date. The net
proceeds from the offering were $222.2 million, net of the initial purchasers'
fees and the offering expenses. We used approximately $18.2 million of the net
proceeds to fund the cost of entering into the capped call transactions.

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